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  <div class="section" id="module-jmetal.operator.crossover">
<span id="crossover"></span><h1>Crossover<a class="headerlink" href="#module-jmetal.operator.crossover" title="Permalink to this headline">¶</a></h1>
<dl class="class">
<dt id="jmetal.operator.crossover.CXCrossover">
<em class="property">class </em><code class="sig-prename descclassname">jmetal.operator.crossover.</code><code class="sig-name descname">CXCrossover</code><span class="sig-paren">(</span><em class="sig-param">probability: float</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#CXCrossover"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.CXCrossover" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">jmetal.core.operator.Crossover</span></code></p>
<dl class="method">
<dt id="jmetal.operator.crossover.CXCrossover.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">parents: List[jmetal.core.solution.PermutationSolution]</em><span class="sig-paren">)</span> &#x2192; List[jmetal.core.solution.PermutationSolution]<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#CXCrossover.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.CXCrossover.execute" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.CXCrossover.get_name">
<code class="sig-name descname">get_name</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#CXCrossover.get_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.CXCrossover.get_name" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.CXCrossover.get_number_of_children">
<code class="sig-name descname">get_number_of_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#CXCrossover.get_number_of_children"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.CXCrossover.get_number_of_children" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.CXCrossover.get_number_of_parents">
<code class="sig-name descname">get_number_of_parents</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#CXCrossover.get_number_of_parents"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.CXCrossover.get_number_of_parents" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

<dl class="class">
<dt id="jmetal.operator.crossover.DifferentialEvolutionCrossover">
<em class="property">class </em><code class="sig-prename descclassname">jmetal.operator.crossover.</code><code class="sig-name descname">DifferentialEvolutionCrossover</code><span class="sig-paren">(</span><em class="sig-param">CR: float</em>, <em class="sig-param">F: float</em>, <em class="sig-param">K: float</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#DifferentialEvolutionCrossover"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.DifferentialEvolutionCrossover" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">jmetal.core.operator.Crossover</span></code></p>
<p>This operator receives two parameters: the current individual and an array of three parent individuals. The
best and rand variants depends on the third parent, according whether it represents the current of the “best”
individual or a random_search one. The implementation of both variants are the same, due to that the parent selection is
external to the crossover operator.</p>
<dl class="method">
<dt id="jmetal.operator.crossover.DifferentialEvolutionCrossover.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">parents: List[jmetal.core.solution.FloatSolution]</em><span class="sig-paren">)</span> &#x2192; List[jmetal.core.solution.FloatSolution]<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#DifferentialEvolutionCrossover.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.DifferentialEvolutionCrossover.execute" title="Permalink to this definition">¶</a></dt>
<dd><p>Execute the differential evolution crossover (‘best/1/bin’ variant in jMetal).</p>
</dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.DifferentialEvolutionCrossover.get_name">
<code class="sig-name descname">get_name</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; str<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#DifferentialEvolutionCrossover.get_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.DifferentialEvolutionCrossover.get_name" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.DifferentialEvolutionCrossover.get_number_of_children">
<code class="sig-name descname">get_number_of_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#DifferentialEvolutionCrossover.get_number_of_children"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.DifferentialEvolutionCrossover.get_number_of_children" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.DifferentialEvolutionCrossover.get_number_of_parents">
<code class="sig-name descname">get_number_of_parents</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#DifferentialEvolutionCrossover.get_number_of_parents"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.DifferentialEvolutionCrossover.get_number_of_parents" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

<dl class="class">
<dt id="jmetal.operator.crossover.NullCrossover">
<em class="property">class </em><code class="sig-prename descclassname">jmetal.operator.crossover.</code><code class="sig-name descname">NullCrossover</code><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#NullCrossover"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.NullCrossover" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">jmetal.core.operator.Crossover</span></code></p>
<dl class="method">
<dt id="jmetal.operator.crossover.NullCrossover.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">parents: List[jmetal.core.solution.Solution]</em><span class="sig-paren">)</span> &#x2192; List[jmetal.core.solution.Solution]<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#NullCrossover.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.NullCrossover.execute" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.NullCrossover.get_name">
<code class="sig-name descname">get_name</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#NullCrossover.get_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.NullCrossover.get_name" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.NullCrossover.get_number_of_children">
<code class="sig-name descname">get_number_of_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#NullCrossover.get_number_of_children"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.NullCrossover.get_number_of_children" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.NullCrossover.get_number_of_parents">
<code class="sig-name descname">get_number_of_parents</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#NullCrossover.get_number_of_parents"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.NullCrossover.get_number_of_parents" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

<dl class="class">
<dt id="jmetal.operator.crossover.PMXCrossover">
<em class="property">class </em><code class="sig-prename descclassname">jmetal.operator.crossover.</code><code class="sig-name descname">PMXCrossover</code><span class="sig-paren">(</span><em class="sig-param">probability: float</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#PMXCrossover"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.PMXCrossover" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">jmetal.core.operator.Crossover</span></code></p>
<dl class="method">
<dt id="jmetal.operator.crossover.PMXCrossover.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">parents: List[jmetal.core.solution.PermutationSolution]</em><span class="sig-paren">)</span> &#x2192; List[jmetal.core.solution.PermutationSolution]<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#PMXCrossover.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.PMXCrossover.execute" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.PMXCrossover.get_name">
<code class="sig-name descname">get_name</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#PMXCrossover.get_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.PMXCrossover.get_name" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.PMXCrossover.get_number_of_children">
<code class="sig-name descname">get_number_of_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#PMXCrossover.get_number_of_children"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.PMXCrossover.get_number_of_children" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.PMXCrossover.get_number_of_parents">
<code class="sig-name descname">get_number_of_parents</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#PMXCrossover.get_number_of_parents"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.PMXCrossover.get_number_of_parents" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

<dl class="class">
<dt id="jmetal.operator.crossover.SBXCrossover">
<em class="property">class </em><code class="sig-prename descclassname">jmetal.operator.crossover.</code><code class="sig-name descname">SBXCrossover</code><span class="sig-paren">(</span><em class="sig-param">probability: float</em>, <em class="sig-param">distribution_index: float = 20.0</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SBXCrossover"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SBXCrossover" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">jmetal.core.operator.Crossover</span></code></p>
<dl class="method">
<dt id="jmetal.operator.crossover.SBXCrossover.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">parents: List[jmetal.core.solution.FloatSolution]</em><span class="sig-paren">)</span> &#x2192; List[jmetal.core.solution.FloatSolution]<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SBXCrossover.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SBXCrossover.execute" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.SBXCrossover.get_name">
<code class="sig-name descname">get_name</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; str<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SBXCrossover.get_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SBXCrossover.get_name" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.SBXCrossover.get_number_of_children">
<code class="sig-name descname">get_number_of_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SBXCrossover.get_number_of_children"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SBXCrossover.get_number_of_children" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.SBXCrossover.get_number_of_parents">
<code class="sig-name descname">get_number_of_parents</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SBXCrossover.get_number_of_parents"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SBXCrossover.get_number_of_parents" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

<dl class="class">
<dt id="jmetal.operator.crossover.SPXCrossover">
<em class="property">class </em><code class="sig-prename descclassname">jmetal.operator.crossover.</code><code class="sig-name descname">SPXCrossover</code><span class="sig-paren">(</span><em class="sig-param">probability: float</em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SPXCrossover"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SPXCrossover" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">jmetal.core.operator.Crossover</span></code></p>
<dl class="method">
<dt id="jmetal.operator.crossover.SPXCrossover.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">parents: List[jmetal.core.solution.BinarySolution]</em><span class="sig-paren">)</span> &#x2192; List[jmetal.core.solution.BinarySolution]<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SPXCrossover.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SPXCrossover.execute" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.SPXCrossover.get_name">
<code class="sig-name descname">get_name</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; str<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SPXCrossover.get_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SPXCrossover.get_name" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.SPXCrossover.get_number_of_children">
<code class="sig-name descname">get_number_of_children</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SPXCrossover.get_number_of_children"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SPXCrossover.get_number_of_children" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="jmetal.operator.crossover.SPXCrossover.get_number_of_parents">
<code class="sig-name descname">get_number_of_parents</code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; int<a class="reference internal" href="../../_modules/jmetal/operator/crossover.html#SPXCrossover.get_number_of_parents"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#jmetal.operator.crossover.SPXCrossover.get_number_of_parents" title="Permalink to this definition">¶</a></dt>
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